Ritu Gupta

Work place: Indira Gandhi Engineering College, Sagar, Madhya Pradesh, 470021, India

E-mail: guptaritu725@gmail.com

Website: https://orcid.org/0000-0001-6351-4875

Research Interests: Image and Sound Processing, Image Manipulation, Image Compression, Signal Processing, Computational Science and Engineering, Image Processing

Biography

Ritu Gupta completed her Bachelors of Engineering in Electronics & Communication Engineering from LNCT, Bhopal and her Masters in VLSI & Embedded Systems from MANIT Bhopal. She is currently pursuing working as an Assistant Professor in Department of Electronics & Communication Engineering at Indira Gandhi Government Engineering College, Sagar (M.P.). Her research interests include Audio and Image Signal Processing, Low Power VLSI Design.

Author Articles
A Comparative Analysis of Lossless Compression Algorithms on Uniformly Quantized Audio Signals

By Sankalp Shukla Ritu Gupta Dheeraj Singh Rajput Yashwant Goswami Vikash Sharma

DOI: https://doi.org/10.5815/ijigsp.2022.06.05, Pub. Date: 8 Dec. 2022

This paper analyses the performance of various lossless compression algorithms employed on uniformly quantized audio signals. The purpose of this study is to enlighten a new way of audio signal compression using lossless compression algorithms. The audio signal is first transformed into text by employing uniform quantization with different step sizes. This text is then compressed using lossless compression algorithms which include Run length encoding (RLE), Huffman coding, Arithmetic coding and Lempel-Ziv-Welch (LZW) coding. The performance of various lossless compression algorithms is analyzed based on mainly four parameters, viz., compression ratio, signal-to-noise ratio (SNR), compression time and decompression time. The analysis of the aforementioned parameters has been carried out after uniformly quantizing the audio files using different step sizes. The study exhibits that the LZW coding can be a potential alternative to the MP3 lossy audio compression algorithm to compress audio signals effectively.

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